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<html>
  <head>
    <title>Echo frame without axe-core</title>
    <meta charset="utf8" />
  </head>
  <body>
    <h1>Frame without axe-core</h1>
    <div id="target">Target in iframe</div>
    <script>
      window.addEventListener(
        'message',
        function (event) {
          window.top.postMessage(event.data, '*');
        },
        false
      );
    </script>
  </body>
</html>
